Sight Reading for Beginners
Sight reading is playing music you have never seen, straight through, without stopping. For a beginner the trick is to start smaller than feels reasonable: one line, one hand, a handful of notes around middle C. The passage below is level 1: four bars of a real melody in the treble clef, stepwise, with no sharps or flats.
Play it on the keyboard under the staff, or on a digital piano over MIDI. A right note moves you on; a wrong one is marked and the reader waits for you.